铁磁纳米磁体中的逆自旋霍尔效应。磁场、电流和电流极性的相关性
Inverse Spin Hall effect in ferromagnetic nanomagnet. Dependencies on magnetic field, current and current polarity
摘要：
铁磁纳米磁体中测得的霍尔角显示出对外部磁场的实质性非线性依赖性，这不能通过所采用的普通和异常（AHE）霍尔效应的机制来解释，这意味着对外部磁场的线性加常数依赖性。我们认为，有一个额外的非线性贡献的逆自旋霍尔效应（ISHE）。ISHE在铁磁体中的重要贡献得到了实验与ISHE唯象理论的完全一致的支持。我们观察到AHE和ISHE对电流的不同依赖性，表明它们不同的热依赖性。我们还观察到霍尔角的电流极性的依赖性，这是由于自旋霍尔效应。
英文摘要：
The measured Hall angle in a ferromagnetic nanomagnet shows a substantial non-linear dependence on an external magnetic field, which cannot be explained by adopted mechanisms of the Ordinary and Anomalous (AHE) Hall effects implying a linear plus constant dependence on the external magnetic field. We suggest that there is an additional non-linear contribution from the Inverse Spin Hall effect (ISHE). The significant contribution of ISHE in a ferromagnet is supported by perfect agreement of experiment with a phenomenological theory of ISHE. We observed different dependencies of AHE and ISHE on current suggesting their different thermal dependencies. We also observe dependence of the Hall angle of the current polarity which is due to the Spin Hall effect.
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